Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6659845 | Grinding method, electronic component, and variable capacitor | Hiromichi Takeda, Hiroyuki Kishishita, Keizo Morita | 2003-12-09 |
| 6656252 | Polymer separation membrane | Masato Tabuchi, Takaaki Sakai | 2003-12-02 |
| 6625858 | Method of producing stator of variable capacitor | Hiroyuki Kishishita | 2003-09-30 |
| 6387269 | Membrane for separating fluids | Ansgar Eltner, Hans-Georg Gobbel, Andreas Nickel, Lothar Puppe, Masakazu Kondo +2 more | 2002-05-14 |
| 6159542 | Process for producing a membrane for separating a mixture | Masakazu Kondo, Yoshio Morigami, Kenichi Okamoto | 2000-12-12 |
| 5554286 | Membrane for liquid mixture separation | Kenichi Okamoto, Masakazu Kondo, Norikazu Miyake, Yasuo Matsuo | 1996-09-10 |
| 5461535 | Variable capacitor | Hiroyuki Kishishita | 1995-10-24 |
| 5087767 | Method for preparing bisphenol A | Kenichi Okamoto, Yasuo Tanaka, Shigeru Iimuro | 1992-02-11 |